$$\left(\sin\left(x\right)+\cos\left(x\right)\right)^2$$

$$1+cot^2x$$

$$tan\left(x\right)csc\left(x\right)$$

$$\tan\left(x\right)\csc\left(x\right)$$

$$\frac{2+\tan^2\left(x\right)}{\sec^2\left(x\right)}-1$$

$$csc^2x-1$$

$$\frac{2+tan^2x}{sec^2x}-1$$